Headlight and the like



Nov. 27 1923. 7 1,475,872

F. G. PIPER HEADLIGHT AND THE LIKE File d Aug. 15. 1922 Fig.1 5.

Nov. 27, 1923.

was] wa t FREDERICK GEORGE PIPER, U33 YVINGHESTEB, ENGLAND.

HEADLIGHT AND TEE.LIKE.

Application filed August 15, 1922. Serial no. 582,024.

To ail to/tom 2'25 may concern Be it known that l, Fnnnnnlon Gnonon V ER, a subject of the King 01 Great Britain, residing at lVinchester, Hants, England, have invented certain new and useful Improvements in Headlights and the like, of which the following is a specification.

This invention relates to headlights for motor cars, and like lamps provided. with axially movable lamp holders adapted to be shifted from a distance so that the lamps may be brought into and out of focus for the purpose of obtaining bright or dimmed light.

Hitherto it has been proposed to use BOW- den wire mechanism for moving the lamp holders against the action of springs. This arrangement however, owing to the stretching of the stranded wire used, frequently re quires adjustment which is not easy for an unskilled user. Moreover the mechanism requires considerable force to operate it, a lever being as a rule necessary.

According to this invention these difficulties are avoided by the provision of solid wire, such as piano wire (in contradist-inction to stranded wire used in Bowden mechanism) guided in a tubular casing for operating the lamp holder of each lamp. The wire is attached to the lamp holder and to an operating device on the dash board or other support in convenient reach of the driver of the vehicle on which the lamp is mounted. The result obtained is direct action and springs are eliminated. The resistance set up between the wire and casing is sutlicient to hold the bulb in any intermediate position within the range of its axial movement.

When several lamps are to be controlled simultaneously the wires from the lamp holders may be connected to a single operating device.

In the accompanying drawings Figure 1 is a side sectional elevation of a lamp fitting according to the invention.

Figure 2 being a side sectional elevation of a drivers control device adapted to operate two lamps simultaneously.

Figures 3 and 41 are cross sections on 33 and elf-d Figure 2 respectively.

In the lamp fitting illustrated a lamp 1 is carried by a holder 2 in a slotted sleeve 3 arranged axially of the reflector 4c and adjustably secured thereto, for instance by a clamp 5 of known construction. The electric cable 6 for the lamp is led to thelamp holder 2 through a slot 7 in the sleeve 3. The sleeve 3 is capped Lt its outer end by a screwed nipple S to w ch the flanged end of a tubular casing 9 detachably secured. A solid wire, for instance piano ."l;?6, 10, is attached to the outer end oi the lamp holder, for instance'it is riveted to a drilled plug 11.

The piano wire 10 passes through the tubular casing 9 and is secured in a hole in the end oi a push rod 13 by a grub sc-rew'li. The tubular casing 9 is secured in a hole 25 in a nipple 15 clamped to the end of a tubular guide 16 for the push rod 13, by ascrcwed cap 26 the nipple having a flange 2'7 for engagement by the can. The guide 16 has a flan e 17 and is screw-threaded to receive lock nuts 18 by which it is secured to the dash board 19 or other support in convenient reach of the driver.

The push rod 13 is free to be reciprocated by a knob 20 but is prevented from rotating, for instance by a grub screw 21 which enters a slot or key-way 22. When the push rod 13 is reciprocated the lamp 1 is moved into and out oi? the focus of the reflector 4; so that an intense light or dimmed light is obtained.

In order that two headlights may be controlled simultaneously a second wire 10 and tubular casing 9 are secured to the push rod 13 and to the nipple 15.

The cap 26 provided with the nipple 15 is detachable from the sleeve 16.

In order that the cap can be removed without twisting he wires and casings, the nipple 15 is held from rotating by pin 24 which enters a slot 28 in the nipple.

In order to permit ready access to the grub screws 1% the knob 20 preferably has a screwed stem 29 screwed into the push rod 13 so that the knob may be unscrewed sufficiently to enable the push rod 13 to be projected beyond the end of the sleeve 16, when the cap 26 is removed and the push rod is forced forwardly as liar as possible, thereby exposing the grub screws 1d.

In practice a steel wire of 20 (S. G.) gauge and a drawn metal tubular casing have been found to give good results.

1 claim:

1. In combination, a headlight having a reflector. an electric lamp and a holder for said lamp, slidable relatively to said reflector, a solid wire connected to said lamp holder, a tubular casing for said solid wire and means for reciprocating said wire to reciprocate said lamp holder for the purpose of shifting said lamp into and out of the focus of said reflector, comprising a slotted cylindrical push rod, means for securing said wire to said push rod, a sleeve containing said push rod, a screw on said sleeve entering the slot in said push rod, and means for securing said tubular casing to said sleeve, substantially as and for the purpose hereinoefore set forth.

2. In combination, a head light having a reflector, a lamp holder slidably mounted with respect to said reflector, operating means connected to said lamp holder, and means remote from the head light for actuating said operating means, said remote means including a push rod connected to the operating means, a sleeve secured to a fixture and slidably receiving the push rod, means, on said sleeve for preventing rotation of the push rod, and means removably securedto one end of the sleeve for limiting endwise movement of the push rod, said latter means being removable to permit separa= tion of the push rod from the sleeve.

A head light having reflector, a lamp holder slidably mounted with respect to said reflector, and operating means for the holder including a Wire and a conduit for said wire, and means remote from the head light for actuating the operating means, said remote means including a sleeve secured to a fixture, a push rod slidable in the sleeve, a nipple removahly secured to one end of the sleeve and held against rotation with respect to the sleeve, said conduit being secured to said nipple, means in said nipple to permit the passage therethrough of the wire, the terminal of the wire being secured to the push rod, and a removable opera-ting head on the push rod.

In testimony whereof I name to this specification.

FREDERICK GEORGE r rnn.

have signed my 

